EURASIP Journal on Advances in Signal Processing

Table 5 Normalized correlation coefficients after JPEG2000 compression on watermarked images in which the watermark is embedded in the 16th directional subband.

From: A Contourlet-Based Image Watermarking Scheme with High Resistance to Removal and Geometrical Attacks

Host	0.3	0.4	0.5	0.6	0.7	0.8	0.9
Baboon	0.9407	0.9770	0.9836	0.9854	0.9865	0.9871	0.9871
Barbara	0.9824	0.9846	0.9860	0.9869	0.9871	0.9871	0.9871
Boat	0.9766	0.9841	0.9863	0.9870	0.9872	0.9872	0.9872
Cameraman	0.9850	0.9864	0.9872	0.9872	0.9872	0.9872	0.9872
City	0.9730	0.9837	0.9852	0.9865	0.9872	0.9872	0.9872
Couple	0.9835	0.9849	0.9864	0.9872	0.9872	0.9872	0.9872
Elaine	0.9792	0.9850	0.9861	0.9869	0.9872	0.9872	0.9872
Lena	0.9842	0.9862	0.9869	0.9872	0.9872	0.9872	0.9872
Man	0.9697	0.9798	0.9832	0.9845	0.9848	0.9848	0.9848
Peppers	0.9832	0.9851	0.9864	0.9872	0.9872	0.9872	0.9872
Zelda	0.9840	0.9863	0.9869	0.9871	0.9871	0.9871	0.9871

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